.. note::
- On some platforms, including FreeBSD and Mac OS X, setting ``environ`` may
+ On some platforms, including FreeBSD and macOS, setting ``environ`` may
cause memory leaks. Refer to the system documentation for
:c:func:`putenv`.
.. note::
- On Mac OS X, :func:`getgroups` behavior differs somewhat from
+ On macOS, :func:`getgroups` behavior differs somewhat from
other Unix platforms. If the Python interpreter was built with a
deployment target of :const:`10.5` or earlier, :func:`getgroups` returns
the list of effective group ids associated with the current user process;
.. note::
- On some platforms, including FreeBSD and Mac OS X, setting ``environ`` may
+ On some platforms, including FreeBSD and macOS, setting ``environ`` may
cause memory leaks. Refer to the system documentation for :c:func:`putenv`.
.. audit-event:: os.putenv key,value os.putenv
.. availability:: Unix.
- .. note:: On Mac OS X, the length of *groups* may not exceed the
+ .. note:: On macOS, the length of *groups* may not exceed the
system-defined maximum number of effective group ids, typically 16.
See the documentation for :func:`getgroups` for cases where it may not
return the same group list set by calling setgroups().
On Linux, if *offset* is given as ``None``, the bytes are read from the
current position of *in_fd* and the position of *in_fd* is updated.
- The second case may be used on Mac OS X and FreeBSD where *headers* and
+ The second case may be used on macOS and FreeBSD where *headers* and
*trailers* are arbitrary sequences of buffers that are written before and
after the data from *in_fd* is written. It returns the same as the first case.
- On Mac OS X and FreeBSD, a value of ``0`` for *count* specifies to send until
+ On macOS and FreeBSD, a value of ``0`` for *count* specifies to send until
the end of *in_fd* is reached.
All platforms support sockets as *out_fd* file descriptor, and some platforms